Salt of naphthyridine carboxylic acid derivative

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EP 1 179 533 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	20.03.2002 Bulletin 2002/12

(43)	Date of publication A2:
	13.02.2002 Bulletin 2002/07

(21)	Application number: 01203507.7

(22)	Date of filing: 20.03.1998

(51)	International Patent Classification (IPC)⁷: C07D 471/04, A61P 31/04, A61K 31/437 // (C07D471/04, 221:00, 221:00)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

21.03.1997 KR 9709840

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	98908300.1 / 0981527

(71)	Applicant: LG CHEMICAL LIMITED
	Seoul 150-010 (KR)

(72)	Inventors:
	Kim, Ae Ri Seoul 150-010 (KR) Lee, Jin Hwa Seoul 150-010 (KR) Park, Ki Sook Seoul 150-010 (KR) Choi, Jong Ryoo Seoul 150-010 (KR) Lee, Tae Hee Seoul 150-010 (KR) Chang, Jay Hyok Seoul 150-010 (KR) Nam, Do Hyun Seoul 150-010 (KR) Choi, Hoon Seoul 150-010 (KR)

(74)	Representative: Blakey, Alison Jane et al
	GlaxoSmithKline Corporate Intellectual Property Two New Horizons Court Brentford, Middlesex TW8 9EP Brentford, Middlesex TW8 9EP (GB)

(54)	Salt of naphthyridine carboxylic acid derivative

(57) 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo- 1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.

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